JOIN button now pulls up a dialog with the auto selected game server to confirm player wants to join that server; TODO: If only one server exists then join that one directly, if multiple exist the offer the 'best' three or something, don't crash if we somehow get a server update without the server list being nil

lib/window.rb

@@ -21,6 +21,7 @@ module W3DHubLauncher
         if existing_game_server
           MemCache[:servers][MemCache[:servers].index(existing_game_server)] = game_server
         else
+          MemCache[:servers] ||= []
           MemCache[:servers] << game_server
         end
       end
@@ -32,6 +33,7 @@ module W3DHubLauncher
         if existing_game_server
           MemCache[:servers][MemCache[:servers].index(existing_game_server)] = game_server
         else
+          MemCache[:servers] ||= []
           MemCache[:servers] << game_server
         end
       end